If you have a bicycle dynamo, your device can be as easy as going for a bike ride in the park. The PowerCycle by Emile Nijssen and Joel Edelstein is an external USB battery pack that gains energy when hooked up to your bicycle wheels.
Electricity-free charging is a new concept in the external battery industry. The PowerCycle also has an eco-conscious aspect since it feeds energy off of simple pedaling motion. This product also lets you stay active while charging it; you won't ever have to sit and wait by your wall charger.
Once fully charged, this compact battery acts as a power source for any electronics using a USB cable. If your phone is ever low on battery while on the road, you can hop on a bike and rely on the PowerCycle.
Stats for Bike-Charged External Batteries
Trending: Older & Chilly
Research: 143 w
Interest: 4 minutes
Concept: Bicycle Dynamo
Related: 75 examples / 58 photos
Segment: Neutral, 12-55
Comparison Set: 28 similar articles, including: transforming tablet cases, magnetic smartphone power banks, and powerful gadget-charging flashlights.
Bike-Charged External Batteries
More Stats +/-
Magnetic Smartphone Power Banks
Transforming Tablet Cases
Powerful Gadget-Charging Flashlights
USB Heating Kneepads
Rechargeable iPhone Battery Packs